Piezoelectric actuator



FIG. 1 is a front elevational view of a piezoelectric actuator showing our new design, the rear being a mirror image thereof;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view of a second embodiment of a piezoelectric actuator showing our new design, the rear being a mirror image thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a front elevational view of a third embodiment of a piezoelectric actuator showing our new design, the rear being a mirror image thereof;

FIG. 12 is a left side elevational view thereof;

FIG. 13 is a right side elevational view thereof;

FIG. 14 is a top plan view thereof;

FIG. 15 is a bottom plan view thereof;

FIG. 16 is a front elevational view of a fourth embodiment of a piezoelectric actuator showing our new design, the rear being a mirror image thereof;

FIG. 17 is a left side elevational view thereof;

FIG. 18 is a right side elevational view thereof;

FIG. 19 is a top plan view thereof;

FIG. 20 is a bottom plan view thereof;

FIG. 21 is a front elevational view of a fifth embodiment of a piezoelectric actuator showing our new design, the rear being a mirror image thereof;

FIG. 22 is a left side elevational view thereof;

FIG. 23 is a right side elevational view thereof;

FIG. 24 is a top plan view thereof; and,

FIG. 25 is a bottom plan view thereof. 

The ornamental design for a piezoelectric actuator, as shown and described. 